Guinea Worm Disease Nears Eradication: Cases Drop to 10 Worldwide
In a landmark achievement for global health, only 10 cases of Guinea worm disease were reported worldwide in 2025 – the lowest number ever recorded. This dramatic decline represents decades of focused effort led by The Carter centre, which took on the challenge in 1986 when approximately 3.5 million people were afflicted annually, primarily in Africa.
A History of Progress
Guinea worm disease, also known as dracunculiasis, is contracted through drinking water contaminated with Dracunculus medinensis. Roughly a year after ingestion, a painful blister typically forms on the lower leg, and a worm slowly emerges. The cycle continues when individuals immerse the wound in water to relieve discomfort, releasing larvae and perpetuating the infection.
Following The Carter centre’s involvement, the number of cases steadily decreased. By 2007, fewer than 10,000 cases were reported. This trend continued with 542 cases in 2012, 126 in 2014, and 22 in 2015. In 2024, just 13 human cases were reported, further shrinking to 10 in 2025 – specifically, two in South Sudan, four in Chad, and four in Ethiopia.
A Legacy of Eradication
The campaign against Guinea worm, which cost around $350 million by 2016, was championed by former President Jimmy Carter. According to a 2016 editorial in The Lancet Infectious Diseases, this effort might not have happened without his support. Carter centre CEO Paige Alexander noted that while President Carter didn’t live to see complete eradication, he would be proud of the progress made.
The Carter centre anticipates Guinea worm disease will become the second human disease eradicated after smallpox, and the first parasitic disease to achieve this milestone. Currently, 200 countries have been certified by the World Health Organization (WHO) as free of Guinea worm, leaving six still awaiting certification.
Adam Weiss, MPH, director of the Guinea worm eradication programme at the Carter centre, believes eradication is “only a matter of time.” He emphasized the challenges of detecting the final cases, stating, “Having a 3-foot-long worm emerge from a human’s body is pretty easy to identify, but it’s also realistic that on a planet of eight billion people…detecting those last few cases is very hard.”
Current efforts include implementing new diagnostic tools and environmental surveillance, testing water sources for Guinea worm DNA. Weiss cautioned against complacency, emphasizing that “just because there’s very little of it left doesn’t mean that you can walk away.”
Frequently Asked Questions
What is Guinea worm disease?
Guinea worm disease, also called dracunculiasis, is a parasitic disease transmitted through drinking water contaminated with Dracunculus medinensis.
How many cases were reported in 2025?
Only 10 human cases of Guinea worm disease were reported worldwide in 2025.
What is required for official eradication?
For a disease to be declared officially eradicated, every country in the world must be certified free of human and animal infections by WHO.
As the world nears the end of this decades-long battle, what does the potential eradication of Guinea worm disease signify for the future of global health initiatives?